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Publication numberUS4314404 A
Publication typeGrant
Application numberUS 06/123,001
Publication dateFeb 9, 1982
Filing dateFeb 20, 1980
Priority dateFeb 20, 1980
Publication number06123001, 123001, US 4314404 A, US 4314404A, US-A-4314404, US4314404 A, US4314404A
InventorsRene A. Ruiz, George Spector
Original AssigneeRuiz Rene A, George Spector
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Razor with pre-wetting or capillarizer system
US 4314404 A
A safety razor including a replacable container inserted into the handle, the container having a pressurized beard-wetting agent therein that is dispensed in selected amounts, by a mechanism, toward the razor head where foam rubber pads absorb the agent and dispense it onto the skin in front of the blade edge.
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What is claimed as new, is:
1. A safety razor, comprising in combination, a handle, a head on one end of said handle comprising a pressure plate and a clamp plate with a blade therebetween, a foam rubber pad between said blade and said clamp plate, and a replaceable cartridge in said handle dispensing a pre-wetting agent to said pad, including means for conducting said agent to said pad through said handle and head in further combination with a second pad secured to said pressure plate abutting said blade, underside including a second means for conducting said agent to said second pad.
2. A razor as in claim 1, wherein the first said means comprises conduits from said cartridge through said handle and head to an annular space between said clamp plate and the first said pad and wherein said second means comprise channels communicating with the first means and said second pad.
3. A razor as in claim 1, including a valve mounted on said cartridge responsive to movement of said cartridge to exit said agent to said first means in combination with external operator for effecting such movement.

This invention relates generally to safety razors.

It is well known that a person must first lather up a beard so as to soften the hairs before they can be easily shaved off. Accordingly, up till now a lathering soap in a shaving mug has been applied by a brush, or else a soap dispensed foaming from a pressurized can was first dabbed on the skin and rubbed in by a person's fingers before a razor was applied for shaving. These preliminary steps required extra equipment and took extra time.

Accordingly, it is a principal object of the present invention to provide a razor having a self-contained beard pre-wetting system that eliminates any preliminary beard softening operations prior to shaving, so as to save time and do away with any other extra equipment cluttering a bathroom medicine cabinet.

Another object is to provide a razor with pre-wetting or capillarizer system that is adaptable for use in either a standard double or single edge safety razor, and which is adaptable for both men's or women's safety razors.

Still another object is to provide a razor with pre-wetting or cappillarizer system which does not require and use of water.

In the drawing:

FIG. 1 is an exploded perspective view of one design of the invention.

FIG. 2 is a side cross sectional view thereof, shown assembled.

FIG. 3 is a perspective view of another design thereof for a single edge safety razor.

FIG. 4 is a perspective view of still another design for a double edge safety razor.

FIG. 5 is a perspective view of a further modified design of the double edge safety razor.

FIG. 6 is a side view of one design of pre-wetting agent cartridge.

FIG. 7 is a side view of the cartridge shown in FIG. 6.

Referring now to the drawing in greater detail, and more particularly to FIGS. 1 and 2 thereof at this time, the reference numeral 10 represents a safety razor according to the present invention wherein there is a handle 11, and a head 12 mounted on one end of the handle and consisting of a conventional pressure plate 13 and a clamp plate 14 that serve as guards between which a razor blade 15 is held, the clamp plate having a threaded stem 16 extending through the pressure plate and screwed in a threaded end of a hole 17 in the handle.

In the present invention, a foam rubber pad 18 is placed between the clamp plate and the razor blade, the pad being coated on opposite sides 19 and opposite end edges 20 with a waterproof sealant 21. A central hole 22 through the pad clears the stem 16 passing therethrough.

Also in this design a foam rubber pad 23 is applied around each leading edge 24 of the pressure plate, the edge being either conventionally toothed or being annularly grooved rotatable roller.

Additionally in this design the handle is hollow and has a removable, screw-on end cap 25 so as to permit insertion of a replaceable cartridge 26 therein which contains a pre-wetting agent under pressure. A valve 27 within one end thereof includes an outwardly extending stem 28 which when depressed causes the agent to be dispensed around the stem. The cartridge is located between a compression coil spring 29 and a push button 30 slidable in the end cap so that when the push button is depressed, the cartridge is moved against the spring and causes the stem 28 to abut against a transverse pin 29A in the handle so as to open the valve and allow the pre-wetting agent to be dispensed into the hole 17. From there, it is pushed through a central hole 30 in the clamp plate stem and into a transverse hole 31 thereof and into the central hole 22 of the pad from where it saturates into the pad 18. The opposite sides 32 of the pad being left uncoated with the sealant, allows the pre-wetting agent to be dispensed outward therefrom and upon a skin and beard, in a vicinity of the blade cutting edges 33. Thus, the agent also transfers therefrom to the pads 23 so that the blade cutting edges are surrounded on both sides with the pre-wetting agent that softens the beard and required no water being used. Thus, the beard is easily prepared for shaving by simply depressing the push button, and requiring no additional equipment clutter, such as shaving mug brush or separate pressurized soap can.

In FIG. 3, a single edge injector razor 34 includes foam rubber pads 35 and 36 above and below the blade cutting edge, the pad 35 being thicker so to store the agent during a shaving operation.

In FIG. 4, the double edge razor 37 is likewise equipped with the pads 35 and 36.

In FIG. 5, another model of double edge razor 38 is of narrow type and includes a foam rubber pad on its underside for dispensing the agent to a roller 39 closely aligned to the blade edge and rolling the agent on the skin and beard hairs. The handle contains a cartridge 40 having a pressurized container 41 containing the pre-wetting agent for dispensing from a hole 42 of the razor head and into which the container valve stem extends. A cord 43 pulls on a piston 44 against a compression coil spring 45 a bead 46 affixed along the cord being moved outward of a hole 47 in the end of the cartridge so as to be locked behind a slot 48 and thus allow a slow steady dispensing of the agent during a shaving operation.

A cartridge 49 shown in FIG. 6 includes a container 50 containing the agent, and a compressed air chamber 51 containing a piston 52 bearing against the agent container. A compression coil spring 53 bears at one end against the container and bears at its other end against an end wall 54 fitted with a check valve 55 for charging the chamber with air.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1556269 *Oct 23, 1924Oct 6, 1925Kai WarmingShaving apparatus with supply of shaving liquid to the cutting edge
US2375444 *Mar 10, 1944May 8, 1945Hyman SchwartsRazor
US3417464 *May 21, 1965Dec 24, 1968IbmMethod for fabricating insulated-gate field-effect transistors
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4562644 *Aug 10, 1984Jan 7, 1986Hitchens Peter BLubricant-applying safety razor
US4850107 *Oct 4, 1988Jul 25, 1989Valliades John FRazor assembly
US4872263 *Sep 30, 1988Oct 10, 1989The Kendall CompanyPorous matrix impregnated with lubricant and water insoluble perforated sheet; razor
US4964214 *Jan 11, 1988Oct 23, 1990The Gillette CompanyFlexible safety razors
US5141349 *May 26, 1988Aug 25, 1992Procter & Gamble CompanyMethod and apparatus for treating the blade of a razor head
US5168628 *Jun 19, 1991Dec 8, 1992Kai Industries Co., Ltd.Razor
US5551153 *Mar 3, 1995Sep 3, 1996The Gillette CompanyRazor blade assembly
US5903979 *Jul 11, 1995May 18, 1999The Gillette CompanySafety razors
US6185823Apr 21, 1998Feb 13, 2001The Gillette CompanyOval frame razor
US6298558Jun 30, 1995Oct 9, 2001The Gillette CompanyFor use in razor blade; cartridge assemblies and shaving systems of the wet shave type
US6889438Sep 3, 2003May 10, 2005The Gillette CompanyOval frame razor
US6996908May 8, 2003Feb 14, 2006Eveready Battery Company, Inc.Wet shaving assembly
US7086159Feb 14, 2003Aug 8, 2006Eveready Battery Company, Inc.Razor assembly
US7103976Feb 6, 2004Sep 12, 2006Eveready Battery Company, Inc.Razor assembly
US7127817Feb 12, 2003Oct 31, 2006Eveready Battery Company, Inc.Shaving preparation for wet shaving assembly
US7162800 *May 12, 2003Jan 16, 2007Eveready Battery Company, Inc.Wet shaving assembly
US7178241May 22, 2000Feb 20, 2007Eveready Battery Company, Inc.Lubricating shaving assembly
US7178243Nov 10, 2004Feb 20, 2007The Gillette CompanyOval frame razor
US7266895Feb 14, 2003Sep 11, 2007Eveready Battery Company, Inc.Razor assembly
US7363715 *Jun 19, 2006Apr 29, 2008Eveready Battery Company, IncRazor assembly
US7370419Feb 14, 2003May 13, 2008Eveready Battery Company, Inc.Replacement cartridge for a razor assembly
US7469477Jun 19, 2006Dec 30, 2008Eveready Battery Company, Inc.Razor assembly
US7610683Jan 5, 2007Nov 3, 2009The Gillette CompanyOval frame razor
US7703361Jun 21, 2006Apr 27, 2010The Gillette CompanyShaving razors and cartridges
US8011101Mar 6, 2008Sep 6, 2011Eveready Battery Company, Inc.Replacement cartridge for a razor assembly
US8745877Mar 23, 2009Jun 10, 2014The Gillette CompanyManually actuable liquid dispensing razor
EP0463992A1 *Jun 17, 1991Jan 2, 1992Kai Industries Co. Ltd.Safety razor
EP0477132A1 *Aug 12, 1991Mar 25, 1992Kai Industries Co. Ltd.Blade unit with guide/support element
WO1992004163A1 *Sep 4, 1991Mar 19, 1992Gillette CoA razor blade assembly
WO1997017174A2 *Nov 8, 1996May 15, 1997Brown Frank EdwardOval frame razor
WO1997033728A1 *Jan 2, 1997Sep 18, 1997Warner Lambert CoShaving systems with foam skin-engaging element
U.S. Classification30/41
International ClassificationB26B21/44, B26B21/52
Cooperative ClassificationB26B21/446
European ClassificationB26B21/44B